Paper-bag machine.



B1B. CILIAUSSEN, PAPER BAG MACHINE. APPLIOATIOH rum) 00w. 12, 19os Patented June 15, 1909.

6 SHEETSSHEET 1.

E. E. GLAUSSEN. PAPER BAG MACHINE.

APPLICATION FILED OUT. 12, 1908.

Patented June 15, 1909.

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Jim

E. E. GLAUSSEN.

BAPEE BAG MACHINE. APPI1I0ATI0IPILED 0M. 12, 1906.

Patented June 15, 1909.

6 SHEET8-SHEET 4.

(Y/tin ess es:

E. E. GLAUSSEN.

PAPER BAG MACHINE.

APPLICATION FILED 00112, 1906.

Patented June 15. 1909;

6 SHEETS-81121115.

wiilzessesz 11? E. E. GLAUSSEN.

PAPER BAG MAGHINE. APPLICATION FILED 00T.12. 1906.

Patented June 15,1909.

6 SHEETS-SHEET 6.

Wiinesse 4 K m m the blank is unrfrisn srnirns PATENT EDWARD EMIL CLAUSSEN, OF HARTFORD, CONNECTICUT, ASSIGNOR TO UNION PAPER BAG MACHINE COMPANY, OF PHILADELPHIA, PENNSYLVANIA.

PAPER-BAG MACHINE.

Specification of Letters Patent.

Patented June 15, IEQQ.

Application filed October 12, 1906. Serial No. 338,621.

county of Hartford and State of Connecticut,

with a postoflice address in the above place, have invented certain new and useful .l mprovenients in Paper-Bag Machines, of which the following is a specification. I

This invention relates to apparatus for automatically manufacturing paper bags from tucked paper tubes, and as herein shown and described is especially adapted to manufacture those bags known in commerce as square-bottom paper'bags, the same being a bag comprising a tucked paper tube, the right-angle inwardly projecting folds and the rectangular bottom folded back upon the tube.

The object of this invention is to provide simple, reliable, accurate and rapid means for unfolding the tubular blank and forming the diamond on the blank.

To carry out the invention, I have devised a novel folding instrumentor device comprising a pair of straight edges or lingers with fold defining edges. The two fingers of .each device are rigidly connected together and are so relatively arranged and spaced apart that one may enter the side tuck of the blank to be folded to define one of the side pocket fold lines formed in the tucked portion of the blank while the other finger projects into the open mouth of theblank to deline the margin line of the diamond fold parallel to the side pocket line defined by the other finger or straight edge. disclosed, there aretwo pairs of these folding devices employed in conjunction with each folding bed. The two devices of each pair are located on opposite sides of the folding bed, and suitable mechanism is provided for oscillating one pair of the devices bodily about an axis practically coincident with the primary transverse fold line of the blank. The folding devices which are thus oscillated serve to open the end of the blank and to define the fold lines formed in the upper hall of the blank, ing devices serve to define the fold lines formed in the lower hall of the blank. Folding devices of this character may be elicctively operated by comparatively simple operatingmechanism, and their operation on such that the diamond told is Preferably, as

while the other pair of foldreadily formed ip such a manner as to eliminate distortions and wrinkles, thus insuring perfect bags and avoidance of waste product. I will give a detailed description of the accompanying drawings which form a part of this specification.

Figure i. represents an outside elevation or -the cylinder being shown in section on line 1-1 on Fig. 2 looking in. the direction of the arrow. Fig. 2 is a sectionalend elevation 'on line 22 on Fig-1. Fig.3 is a sectional plan view-taken on the broken line 3.3 on Fig. 1. Figs. 4 and 5 are sectional end views taken on the lines 4+4 and 5-45 respectively, looking in the direction of'the arrows on Fig. 6. Figs. 6 and 7 are plan views of the top of the cylinder showing the diamond of the bag com pleted and the straight-edges respectively, inserted and withdrawn from the bag blank. Figs. 8 and 9 are cylinder of a modified form. The move nient of the plates being at 60 dog. to the longitudinal median centerline instead of 45 deg. as shown in Figs. 6 and. Fig. 10 represents the right-hand side elevation. of the a Fig. 11 shows an end view of the machine. resser feet.

The directions of the movements of'parts are shown by adjacent arrows, and the positions of the 'dill'erent folding instrumentali ties areshown irrespective of the relations of the positions to the cams which move these instrumentalities, it being sullicient for the purpose of this description to say, that the cams are properly laid out and out to produce the operations of the folding instrumentalities at the proper time and to the required extent.

The bed 15 which supports the various ames and brackets of the machine, is adapted to support the side framcslfi and 17, of well known OQTIStILICtiOD and each side frame carries the bushings 1S and 19 respectively, which are provided with flanges bolted securely thereto. The hand wheel 20 (see Fig. 1()) turns in the direction of the arrow 21, together with the pulleys 22, which are fixed upon the pulley-shaft 23, which is journalcd in the side frames 16 and 17 crosswise of the machine. mounted the gear 24, which meshes into the cylinder gear 25, fastened to the cylindershall 26 and journalcd in the bushings it; and l?) which carry the cylinder 27. The cylindcugcar meshes into th gear 28 which plan views of the top of the I Upon the shaft 23 is also engages the gear 29 and, sets the train of gearing 30, 31, 32 and 33 in motion. The gears-28, 29, 30, 31, 32 and 33 are mounted bathe-shafts 34, 35, 36, 37, 38 and 39 respectively. The gear 28 also meshes into the gear 40 on" the shaft 41 and has on the oglposite side another gear of equal diameter w ichr'neshes into the gear 42. All these are similar in construction to those shown in Patent No. 813,280 granted to me and dated Feb. th, 1906.. The cylinder gear also meshes into the gear 43 on shaft 44 and by the means just described the whole machine is set into motion in the direction indicated by the arrows. For-sake of clearness I have shown ,the gears 24,25, 28, 29, 30,, 31, 32,

33,.34, 40, 42 .and 43in dash and dotted lines, but they are understood as having teeth out around their peripheries.

The mechanism for forming) fold on the tucked paper tube lank will now be described .and consist of the following: As previously described the cylinder .27 is mounted on and. is rotated by the. cylinder shaft 26 and in the machine illustrated is provided with eight foldi ,mechanisms, but a larger or a smallernum or might be r0 vided, according to the sizeof, the mac me and these folding mechanism are distributed at equal distances aroundthe'periphery of the cylinder. {Each of'the eight folding mechanisms receive motion from the same set of cams and they are allidenticalin construction and I will therefore describe only one set thereof. As the paper blank is delivered onto the cylinder the same is clamped thereto by the pincers 48 and 49 which pass, over both plies of the tube and they are located in such a position that the forward edges correspond with the primary transverse folding line-of the bag blank as clearly shown in Figs. 6, 7, 8and 9*. The pincers 48 and 49 are pivoted on studs 50 and 51 have inwardly projecting armsupon which the springs 52 and 53 press and keep the same in a closed position upon the top of the cylinder. The same are caused to be opened by the arms 54 and 55,pinned upon the shaft 56 and'the arm 54 carries an extension which carries the cam-roll 57 engaging the stationary cam 58 and as the cylinder.

is rotated the pincers are opened according to the timing of the cam, the spring 59' always keeping the camroll spring pressed against the cam. Integral with and projecting from each side of the cylinder are the slide-ways 60 adapted to receive the slidesfihupon which are fastened the folding devices or implements, which,, in the form shown, consist of late62 having fingers 63 and 64. These ngers I prefer to call straight edges, as each of the fingers has av fold defining side edge which preferably is,

rectilinear, though, of course, it will be understood that this edge need not be abso-I f the diamond lutely straight. It will, of course, be understood that the fold defining edgesof thc fingers 63 and 64 arethe parallel right hand side edges ofxthe fingers as they appear in Figs. 6, 7, 8 and 9. The fold defining edges of the fingers 63 and 64 of each plate define the one, the inside triangular fold line,'at one side of the blank, and the other, the parallel diamond .margin fold line, at the other side of the blank. The fold defining observed from the dotted lines of Fig. 7 that an extension of the fold defining edge of each finger 63 passes through the intersection of the primary transversefold line with the inner edge of the trick at one side of the sects an extension of the primary transverse fold line at a distance beyond the far side edge'of the blank which is equal to the depth ofthe tuck, as'is shown by the dotted lines I), c in Fig. 7. 'Fromthis it is seen that the distance a isequal to the length of each leg blank. From this it may be determined by simple geometry that the distancea is equal to the width-of the blank divided by the square root of two.

The meansfor reciprocating the slides 61 with the lates 62 and its straight-edges is as follows: assing throughthe slide 61 is the stud 65 which is engaged by the connecting the. pivot67, of the arm .68 on shaft 69,

camroll engaging a groove in the cam 71',

As the cylinder rotates the slides with the very thin and the points or ends, of 64 are bent slightly one above the other so that they pass one another when they-enter into the bag.

To insure that the straight edges 64 properly enterinto the bottom forming'end, hive provided the presser foot 72 (see a. 1:1 and 12).adjustably held in the head and fas'tened on the shaft 44, which is rnnlcd crosswise to the machine in'the edges ofthe fingers 63 and 64 are each at anwidth of the blank worked upon. It will be 'of azright angled isosceles triangle of whichthe' hypotenuse is equal to the width of the rod 66 and which has its other end j ointod to 'plates 62 and their straight edges are' recipro' cated. The straight-edges 63 and 64 are blank, while an extension of the fold defining edge of the corresponding finger 64 inter'-' journale'd in a hub 76 of the bracket 76, said shaft havmga cam arm provided with a held on the stationary bushings 18 and 19.

frames 16 and 17. The gear 43 is timed relation to the cylinder gear 25 in such a manner, :thateach blank is slightly pressed by the presser foot to the cylinder at the point shown on Figs. 6 and 7, thereby giving the straight edges 64 a clear and unobstructed entrance into the mouth of the bag and as the rotation is continued the presser-heel 73 which is also adjustably mounted in the head 741-, slightly presses ontothe tube permitting the straight edges 63 to enter between the tucks of the paper tube.

The presser heel 73 is provided with the creaser blade 73, which creases the bag blanlr at the primary transverse folding line the oscillating shafts 77.

The mechanism which operates above the paper bag blank Will now be described.

integral with and on each'side of the cylinder.27, are the flanges 75, to which are secured the brackets 7 6 carrying at their upper ends the bearings for the oscillating shafts 77, which are located is sucha manner that and which corresponds to the center-line of their center lines correspond with the pri niary transverse folding line of the bag blank. Secured to the oscillating shafts are the oscillating heads 78, which are provided with guide-ways on Which-reciprocate the slides 79, to which are secured folding devices or implements. These are in the form of plates 80, provided with the tv. 0 parallel thin straight edges 81 and 82. The plates 62 and 80 with their corresponding straight edges 63 and 81 and also 64 and 82 are exactly alike as far as the straight edges are concerned. The straight edges 81 enter between the tucks of the tube, the straight edges 82 enter into the bottom forming end and below the upper. ply of the paper bag blanlr when the oscillating heads 78 arekin their forward position as indicat d by the dash and dot line e of Fig. 1.

The plates 80 with their parallel straightedges 81 and 82 are reciprooated as follows: The slides 7 9 are provided with racks which engage the, sectors 83-,on pivots 84-, held on the oscillator-heads 78, and those sectors have projecting arms which are provided with rolls 85, which engage between th inner and central collars of the sleeves 86. Between the central and outer cellars of the sleeves 85, are the roll 87 on the arms 88 shed on shafts 89 journaled in hubs of -e opoosite ends the care arms 90, the cam.

rolls or which engage the earns 91 held on the stationary bushings 18 and 19. The oscillating shafts 77 have secured on theirouter.

and conveyersector, blank to the cylinder. As theadvancing lets 76, and those shafts carry on.

' having tated the head 78 is oscillated from the osition as shown by the dash and dotted line e of Fig. 1 to the position as shown in the left hand corner of the same figure.

In Figs. 8 and 9 I have shown a. modification in which the angula'rityof the movement of the slides is to degrees instead of 45 degrees as shown in Figs. 6 and 7. The angle of the straight-edges is however the same 'viz., 45 degrees to the central median line of the cylinder, and as the construction and operation is otherwise identical no further description is necessary.

The operation of the machine is, as follows:The roll of paper which is to be con vertcd into square-botto1n paper bags, is

mounted at the front end of the machine and as the web of paper passes along the same paste is ap lied and then the paper passes around the is and guide-rolls, is folded around the former and thereby converted into a continuous tucked paper tube, which is guided into the bite of the drawing-rolls, which feed the tube into the machine. The tube is then out into lengths of sufficient-size to form a. completed square-bottom paper he. delivered intojthc bite of the conveyor-rel which conveys the bag bottom forming end of the blank moves toward the cylinder, the front end of the lower ply is pressed at d (see Fig. 6) by the presser foot 72, to the cylinder and at this instant the plates 62, with their straight edges 63 and 64, move toward the bag blank the straight edges 64 passing over the lower" ply of the tube, simultaneously the plates 80 with the straight edges 81 and 82 are also caused to be moved toward the blank While the oscillator-heads 78 are in the position is carried a little more forward the straight The blank which has been previously transversely creased by the creaser blade and the pincers and 49 having closed onto the blank the ser es'of, straight edges are then caused to complete their movement to the 5 roner depth into the blank. The oscillator needs 78, on shafts 77, are then caused to be oscillated by means ol the sector pinions 92,

sectors 93 and. earn 96 thereby unfolding. the

tucked paper tube and converting the same into the iarnond term as clearly shown 1n Fig. 6. The series of straight edges are then ithdrawn and the bag completed by turning over the endiilaps, wh ch form no part oi v this invention, by any .ot the mechanism Well known ln the art. I

What I claim and desire to secure by Letters liatent is edges 63 and 81 enter between the tucks.

An umplement far 'diamond folding I tucked blanks of predetermined width two rigidly connected but spaced apart-portions adapted for simultaneous enits indicated by the linee of Fig. 1, as the blanktrance, one. into the tuck at one side of the blank and the other into the mouth of the blank, each of said portions being provided with a fold deiining edge at the same side of the portion as, and parallel to, the fold defining edge of the other portion, the one for degether and rov ded each with a fold defin- 1r 5 edge at t e'same side of the fingeras and ipgrallel to the fold defining edge of the other ger, and having the distance between said -edges equal to said bag width divided by the square root of two.

3. A machine for diamond folding tucked bag blanks, including in combination a folding bed, a pair of folding devices, each provided with a pair of spaced apartfold defining straight ed es, means for moving said devices into and out of the blank engaging position in which one straight edge of one device enters one side tuck of the blank, and the corresponding straight edge of the other device, the other side tuck of the blank, and the other straight edges extend into the open mouth of the blank, and mechanism cooperating with said devices and the bed to form the diamond fold.

4. A machine for diamond folding tucked bag blanks, includinx in combination. a folding bed, a pair of folding devices, each provided with a pair of spaced apart fold defining straight edges, means-for moving said devices into and out of the blank engaging position in which one straight edge of one device enters one side tuck of the blank, and the other straight edges extend into the open corresponding straight edge of the other device the other side tuck of the blank, and the mouth of the blank, means for turning said folding devices bodily about an axis substantially coincident with. the primary transverse fold line of theblank, and means cooperating with said devices and the bedto form the diamond fold.

5. A machine for diamond folding tucked bag blanks, including'in combination a folding bed, two pairs of folding devices, each folding device having a pair of spaced apart ing said folding devices into and out of the blank engaging position in which one straight edge of one device of each pair enters one side means for oscillating ono pair of said folding 1 devices bodily about an axis substantially fold defining straight edges, means for movcoincident with the primary transverse fold :line of the blank.

6. A machine for diamond folding tucked bag blanks, including in combination a rotary blank carrier having afolding bed, eight fold definingstraight edges mounted ,on the blank carrier and movable relatively thereto. into and'out of an operative position in which they extend-over the outline of ablan'k on said folding bed, and adapted when in said position, two to project into each side tuck I of the bls'nkand engage theblank therein alon nhe aside triangular pocket lines, and.

the other four to projectinto the mouth of) the blank and engage it along the fourdia-f mond margin lines parallel to said inside" pocket lines, means for moving saidst'raight f edges into and out of said operative position,

and means for rotating the straight edges engaging the blank at the fold lines formed'in the upper half of the blank about an axis substantially coincident with the primary transverse fold line of the blank.

7. A machine for diamond folding tucked bag blanks including in combination a blank carrier provided with a folding bed, four straight edges mounted on said'carrie'r and movable relatively thereto into and out of the position in which they extend. over the outline of a blank on the folding bed and adapted when in said position to enter one into each side tuck of the blank to define an inside triangular pocket line therein, and the other two into the mouth of theblank to define the diamond margin lines parallel to the side pocket lines defined by the straight edges entering said side tuck, means for moving said edges into and out of said posltion, and

means cooperating with said straight edges and the bed. to form the diamond fold.

8. A machine for diamond folding tucked bag blanks, including in combination a folding bed, guideways at each side of the folding bed extending at an angle to the primary transverse fold line of the blank, folding dcvices sliding in said guideways and provided each with a straight edge adapted to project into the adjacent side-tuck of the blank, and a straight edge adapted to projectinto the far side of the mouth'of the blank, means for movingsaid folding devices in said guide- Ways, and means cooperating with said folding devices and the folding bed for forming the diamond fold.

9. A machine for diamond folding tucked- Tiag blanks, including in combination a'folding bed, guideu 'ays at each side-of thefolding blank, and a straight edge adapted to piojc t into the far side of the mouth of the blank. means for rotating said folding dcedges, one shaped to project into the side eeaaee vices about an axis substantially coincident with the primary transverse fold line of the blank, and means cooperating with said folding devices and the folding bed for forming the diamond fold.

10. A machine for diamond folding tucked bag blanks, including in combination a foldingbed, a pair of guideways at each side of the folding bed, each extending at an angle to the primary transverse fold line of the blank, folding devices mounted one in each guideway, each folding device having a pair of straighlt i c r of. the blank and the other into the far side of L the mouth of the blank, means for moving means for turning one slideway and folding devices carried thereby at each side of the blank about an axis substantially coincident primary transverse fold line of the with the blank. 7

11. A machine for diamond foldingtucked bag blanks, including in combination a fold? ing bed, a pair of folding plates arrangedone;

on cachside of the folding bed. and each having a pair of fold defining fingers, means-for moving said plates into and out of-theblank engaging position in which one finger ofeach plate enters the adjacent side tuck 0f the blank, and the other finger of the same plate projects into the far side of the mouth ofthe blank, and mechanism cooperating with said plates and the bed to form the diamond fold.

12. A machine for diamond folding tucked bag blanks, including in combination a foldmg bed, a air of folding plates arranged one on each si e of the folding bed and each having a pair of fold defining fingers, means for moving said plates into and out of the blank engaging position in which one finger of each plate enters the adjacent side tuck of'the lank and the other finger of the plate projects into the far side of the mouth of the blank, means for turning said plates bodily about an axis substantially coincident with the primary transverse fold line of the blank, and mechanism cooperating with said plates and the bed to form the diamond fold.

13. A machine for diamond folding tucked bag blanks, including in combination a rotating blank carrier provided with a folding bed, a pair of folding devices mounted on the blank carrier and located one on each side of the folding bed and each provided with a pair of spaced apart fold defining straight edges, stationary cams and intermediate mechanism between said cams and folding devices for moving the latter into and out of the blank engaging position in which one straight edge of one device enters one side tuck of the blank, and the corresponding straight edge of the other device enters the other side tuck of the blank, and the other straight edges extend into the open mouth of the blank, and mechanism cooperating with said devices and the bed to form the diamond fold.

l4. Amach'ine for-diamond folding tucked bag blanks, including in combination a roa side tuck of the blank, and the other straight edges enter the open mouth of the blank, and for turning said folding devices bodily about an axis substantially coincident with the primary transverse fold line of the blank, and meansjcoopera'tmg with said devices and the bed to form the diamond fold.

l5. A machine for diamond folding tucked bag blanks, including in. combination a rotary blank carrier having a folding bed, a resser foot mounted on the blank carrier, olding devices mounted on the blank carrier and located one on each side of the folding bed, means for moving said folding devices into and out of the blank engaging position in which one straight edge of each device enters the adjacent side tuck of the blank, and the other straight edges enter the 0 en mouth of the blank while the p'resser 'oot presses the lower ply'of the blank against the folding bed, means for operating the presser foot, and means 006 erating with said devices, resser foot, an bed to form the diamond old.

16. A machine for diamond folding tucked bag blanks, including in combination a ro tary blank carrier having a folding bed, pivotally disposed pincers mounted on the folding bed and arranged so that their forward edges are adapted to engage the blank along the primary transverse fold 'line thereof, means for opening and closing said pincers at predetermined intervals, two pairs of .positely disposed folding plates, each provided with a pair of straight edges, means for moving said plates into and out of the operative osition in which one straight edge of each (evice projects into the adjacent side tuck of the blank, and the other straight edge projects into the open mouth of the blank, and means for rotating one pair of said plates bodily about an axis substantially coincident with the primary transverse fold line of the blank." i

I EDWARD EMIL CLAUSSEN- Witnesses:

WALTER T. CHESTER, NATHAN KEMPNER. 

